Display panel of a programmed computer system with a transitional graphical user interface



FIG. 1 is a front view of a first image of a display panel of a programmed computer system with a transitional graphical user interface.

FIG. 2 is a second image thereof; and,

FIG. 3 is a third image thereof.

The broken lines showing an electronic device illustrate environmental subject matter, whereas the broken lines showing a display panel and elements of the graphical user interface illustrate portions of the article. No subject matter depicted in broken lines forms part of the claimed design.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1-3. The process or period in which one image transitions to another image forms no part of the claimed design. 

CLAIM We claim the ornamental design for a display panel of a programmed computer system with a transitional graphical user interface, as shown and described. 